Machine for wiring sheet-metal pans



(No Model.) 3 Sheets-Sheet 1.

C. P. BBAMAN. MACHINE EGE WIRING SHEET METAL PANE.

No. 291,834. Patented Jan. 8, 1884.

(No Model.) 43 Sheets-Sheet; 2.

` C. I'. BEAMAN.

MACHINE EOE WIRING SHEET METAL PANS.

Patented Juan. 8, 1884.

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v3 Sheets-Sheet 3.

-(No Model.) v

, C. F. BEAMAN.

MACHINE FOB. WIRING SHEET METAL FANS.

No. 291,834. Patented Jan. 8, 1884.

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CHARLES E. BEAMAN, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE WELLS- VILLE PLATE AND SHEET IRON COMPANY, OE VELLSVILLE, OHIO.

MACHINE FOR WIRING SI-IEET-VHETAL PANS.

SPECIFICATION forming part of Letters Patent No. 291,834, dated January 8, 1884.

Application filed October 29, 1383.

To @ZZ whom it may concern:

Be it known that I, CHARLns F. BEAMAN, of Chicago, in the county of Cook and State of Illinois, a citizen of the United States,

temporarily residing at IVellsville, county of Columbiana, State of Ohio, have invented or discovered anew and useful Improvement in Machines for IViring Sheet-Metal Pans; and I do hereby declare the following to be a full,

io clear, concise, and exact description thereof, reference being had to the accompanying drawings, making apart of this specification, in which-like letters indicating like parts- Figure 1, Sheet 1, is a vertical central section through a machine for wiring sheet-metal pans, embodying my invention, Eig. 2, Sheet 2, a similar section through a portion of the same, the parts being shown in the positions occupied at the commencement ofthe operzo ation, Fig. 3, Sheet 3, a similar section with the parts in the positions occupied at the completion of the operation, and Fig. 4 a plan or top view of the table and the mechanism connected thereto.

2 5 My improvements relate to machines for securing wire in the edges of pans er other vessels of sheet metal, and consist in certain novel mechanism hereinafter set forth, whereby the article which is to be wired is held between a supporting and a pressing die, the

wire retained in position in grooves or recesses in its edge by a series oi' holding plates or lingers, and the edges turned over and closed ldown on the wire, upon the retraction 3 5 of the device which holds the wire, by a series of swage-blooks or formers connected to and actuated by the movement of the supporting-die.

The improvements claimed are hereinafter 4o fully set forth.

In the practice of my invention, I provide a substantial frame, A, on the upper portion of which are formed bearings a for adrivingshaft, A', which is rotated by the application 4 5 of power from any suitable prime mover to a pulley, a, on one of its ends.' A table, A2, is secured upon the frame below the driving shaft, and a cross-head or platen, B, which is fitted to slide between guides is reciprocated toward and from the top of the table by (No model.)

one or more cranks, eccentrics, or cams, A3, fixed on the driving-shaft A', and coupled to the cross-head by a connecting rod or rods, ci. A bed-plate, A4, having a central opening is secured upon the table A2, its central opening being located. above a recess, ahtherein. A supporting-die, C, corresponding in form with the pan which is to be wired, is formed upon or secured to the upper end of a stem or stock, C', which is to be itted to move freely in the central opening of the bed-plate A4, its true vertical movement being insured by guides a5 on the upper and lower sides of the bed-plate. The top of the supporting-die C corresponds in form and dimensions with the bottom of the pan, and is recessed in conformity with the inner elevation of the bottoms, if they are made, as is usual, with such elevation. The sides of the supporting-die correspond with the sides of the pan, and upon the lower edge of each side of the die there is formed a segmental bearing, c, to which is coupled a swage block or former, presently to be described. A plate or flange, c', is formed on or secured to the lower end of 75 the die-stock C, said fla-nge serving to receive pressure applied by a spring, tending to force the stock and die toward the cross-head B, and also limiting the traverse of the stock and die in either direction by abutting against the lower flange a of the bed-plate and the bottom of the central recess of the table, at the upper and lower extremities of the movement of the die,`respectively. The upward movement of the supporting-die is imparted by a 85 helical spring, C2, which cucire-les a springbolt, c3, secured to and proj acting downwardly from the table in line with the central recess thereof, one end of said spring bearing against a collar or washer, ct, which may be adjusted in desired position upon the spring-bolt by nuts c5, and the other end bearing against a collar, o, sliding freely on the spring, and having two or more upwardly-proj ecting pins or studs, c7, which pass through and are guided in open- 95 ings in the table and bear against the flange c of the die-stock C. A longitudinal groove or recess, c2, is formed in the top of each of the lateral segmental bearings o of the supporting-die, said groove serving to receive the 10o turned edges of the pan within which the wire is placed, and beneath which it is to be se cured.

At each side of the supporting-die C, Iprovide a swagebloelc or former, D, the front surface of which is recessed in conformity with the curvature of the segmental bearings c of the die, and which is beveled or inclined backwardly from an upper turning-edge. Said swage-block is secured to the top of a carrierblock, D', which is recessed in correspondence with the bearing e on its top and near its front, and which has a rounded bearing, d, projecting from its lower side at the rear or outer portion thereof. Referring more particularly to Figs. 2 and 3, it will be seen that each of the swage-blocks, with its connected carrier, is thus journaled upon a bearing on the die, and when the die is at its lowest position the carrier rests by its lower bearing on the bed-plate, and the turning-edge of the swage-block covers the groove in the bearing ofthe die. In the ascent of the die, the swageblocks and carrier-blocks are elevated by the bearings to which they are respectively connected, the free sides of the carrier-blocks traversing' over the surface of the bed-plate on the bearings d at their outer or rear sides.. In such movement the turning-edges of the swage-blocks are retracted from above the grooves c2 of the die, and permit the holding plates or fingers, hereinafter to be described, to press upon and hold the wire in position.

In lieu of forming the swage-bloeks separately from and securing them to their carriers, as shown, it will be obvious that, if preferred, a lip or iiange to embrace the die-bearing and a lower bearing might bc formed directly upon the swage-bloek, but the construction shown I deem more desirable, as under it the swageblocks may be formed of different metal from the carrier, and can be conveniently removed and replaced when worn or broken.

A pressing-die, E, corresponding in form with the upper portion of the supportingdie C, is secured to the lower portion of the crosshead or platen B, or t0 a block, B', projecting downwardly therefrom in line centrally with the supporting-die, said die, in the downward movement of the cross-head, bearing upon the bottom of the pan, which is placed on the supporting-die, clamping the same between its face and that of the supporting-die, and depressing the supporting-die until the turningedges of the swage-blocks move inward far enough to cover the grooves c, as seen in Figs.

1 and 8. In these iigures the swage-blocks are shown as at the completion of the operapan-is secured to a plate or plates, F', connected to and supported by vertical rods j', which pass freely through openings in lower iianges, b', on the platen B, and through stop-arms a, secured to the frame A of the machine, the range of movement of the rods f independently of the platen being limited by nuts f2, engaging threads on their upper ends, the position of which nuts can be adjusted as desired, and by collars f, formed on the rods and adapted to bear on the upper surfaces of the flanges b of the eross-head. Until the nuts f2 come into contact with the stop-arms as, the plate Fis subject to downward pressure, within the limit permitted by the collarsf, by the tension of springs f s, which bear at one end against washers f3, adjusted by nuts f5 in desired position upon vertical spring-bolts f, secured to the flange b', and at the other against plates f, sliding freely on the spring-bolts, and carrying pins f7, which bear against the top of the plate F.

In the operation of the machine, the pan is placed upon the supporting-die C, and the wire, being bent into the proper form and size, is inserted in the bent portions of the metal adjacent to its edges, which portions rest in the grooves c?. The driving-shaft being rotated, the platen descends, and the connected pressing-die, bearing on the top of the pan, clamps it in position on the supporting-die, while the holding plates or fingers bear on the wire and retain it in position. The pressingdie depresses the supporting-die, which in its descent draws inward the swage-blocks and carrier-blocks, and the turning-edges of the swage-blocks, bearing upon the metal at the edges of the pan, turn the same over upon and close it iirmly down on the wire, the operation being completed at the termination of the downward stroke. The holding-fingers are withdrawn from their bearing upon the wire, in advance of the movement of the turningedges of the swage-blocks over the same, by the lower of the nuts ,f2 coming in contact with the stop-plates as. The downward movement of the holding-fmgers is thereby arrested, while the dies continue their movement, and the advance of the turning-edges of the swageblocks is thus permitted without obstruction from the holding-ngers. On the upward stroke of the platen, the supportingdie is pressed upward by its spring, and the edges of the swage-bloeks are drawn clear of its side recesses, to admit of the removal of the iinished pan and the repetition ofthe operation.

I claim herein as my inventionl. The combination, substantially as set forth, of a iixed table or bed, a supporting-die which is movable therein, said die having a longitudinal groove or recess on each of its lower edges, and a segmental bearing below and exterior thereto, and a series of swageblocks or formers, each having a turning-edge on one of its sides, and a socket or segmental recess, fitting one of the bearings of the die, below and in advance of said turning-edge,

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and having on its opposite side a bearing or support adapted to rest upon the bed-plate.

2. The combination, substantially as set forth, of a reciprocating cross-head or platen, a iixed bed-plate, a supporting-die fitted to traverse in a guide in the bed-plate, and to be moved in one direction by the platen, a spring which imparts movement to the supportingdie in the opposite direction, and a series of swage-blocks or formers pivoted at one end to the supporting-die, the opposite end resting freely on the ixed table, said swage-blocks having turning-edges which are alternately advanced toward and retracted from the sides of the supporting-clichy the movements thereof in opposite directions, respectively.

3. The combination, substantially as set forth, of a frame, a cross-head or pla-ten reciprocating therein, a series of holding plates or fingers connected to a plate having a limited degree of traverse upon said platen, a spring bearing at one end against an abutment fixed upon the platen, and at the other against the plate which carries the fingers, a rod which is secured to said plate and passes freely through a bearing on the platen, said rod having a collar or projection which limits its traverse in the direction induced by thc spring, and a stop-arm iXed upon the frame and adapted to abut against a nut or projection on the rod.

4. The combination, substantially as set forth, of a swage-block or former having a turning-edge on one of its sides and a segmental recess below said edge, and a carrierblock having a recess adjoining and of similar curvature to that of the swage-block at one side, and a lower bearing or support at the other.

In testimony whereof I have hereunto set my hand.

I cHARLns F. BEAMAN.

Witnesses:

DARWIN S. WoLooTT, R. H. WHITrLEsEY. 

